<?xml version="1.0"?>
<div class="add">

<b>let </b><font color="Maroon">D</font> be  non <a href="xboole_0.html#V1">empty</a>  <a href="hidden.html#M1">set</a> ;<br/><b>let </b><font color="Maroon">F1</font> be    <a href="rfunct_3.html#M2" target="_self">Element</a> of  <a href="rfunct_3.html#K4" target="_self">PFuncs</a> <font color="Maroon">D</font>,<a href="numbers.html#K1">REAL</a> , <font color="Maroon">F2</font> be    <a href="rfunct_3.html#M2" target="_self">Element</a> of  <a href="rfunct_3.html#K4" target="_self">PFuncs</a> <font color="Maroon">D</font>,<a href="numbers.html#K1">REAL</a> ; <i><font color="Red">:: according to </font></i><a class="ref" href="binop_1.html#D13">BINOP_1:def 13</a><br/>



<b>set </b><font color="Maroon">o</font> =  <a href="rfunct_3.html#K14" target="_self">addpfunc</a> <font color="Maroon">D</font>;<br/>
<b>thus </b><span class="p1">(<span class="default"><a href="rfunct_3.html#K14" target="_self">addpfunc</a> <font color="Maroon">D</font></span>)</span> <a href="binop_1.html#K2">.</a> <font color="Maroon">F1</font>,<font color="Maroon">F2</font> = 
<font color="Maroon">F2</font> <a href="rfunct_3.html#K6" target="_self">+</a> <font color="Maroon">F1</font>
<b>by </b><i/>
<br/>.= 
<span class="p1">(<span class="default"><a href="rfunct_3.html#K14" target="_self">addpfunc</a> <font color="Maroon">D</font></span>)</span> <a href="binop_1.html#K2">.</a> <font color="Maroon">F2</font>,<font color="Maroon">F1</font>
<b>by </b><i/>
;<br/>


</div>
